Valve tool



R. BRETH VA LIVE TOOL Feb. 27, 1923. 1,446,822

Filed Apr. '7, 192g Patented Feb. 27, 1923.

ROBERT I... BRETH, OF BUTLER, PENNSYLVANIA.

. VALVE TOOL.

Application filed April 7, 1922.

To all whom it may concern:

Be it known that I, ROBERT L. BRETH, a citizen of the United States, residing at Butler, in the county of Butler and State of Pennsylvania, have invented a new and useful Valve Tool, of which the following is a specification.

This invention relates to valve removers and more particularly to tools for compressing the spring oi an internal combustion engine valve so that the abutment for the spring attached to the valve stem may be removed and the valve lift d from its seat.

The object of the invention is to provide a simply constructed device of this character which may be quickly applied and connected and the parts of which may be taken apart and stored in a comparatively small space when not in use.

lVith the foregoing and othenobjects in Figure 3 is a vertical section taken on the line of Figure 1, and

Figure 4 is a horizontal section taken on the line at of Figure 1.

The tool constituting this invention conipriscs a clamp bar or base 1 having one end thereof widened and bifurcated the formtions 2- thereof being designed to straddle the stem of the valve in connection with which the tool is to be used.

Rising from the bar 1 in longitudinally spaced relation are two posts or rods 3 and 4- which are shown having threaded engagement with bar 1 to provide for their removal when the tool is to be collapsed or knocked down. I

Serial No. 550,338.

- The post or rod 3 is longer than rod 4: and I both of these rods have their upper ends threaded and are equipped with nuts 5 and 6 respectively.

A top movable clamp bar 7 is loosely enposition shown in Figure 1.

A cam lever 9 is carried by the upper end of rod 3 above bar 7 being fulcrumed on the nut 10 which has threaded engagement with the rod end 3, said nut being adjustable on said rod to vary the tension of spring 8. q

The lever 9 has its inner end bifurcated and the furcations 11 thereof are equipped at their free ends with cams 12 eccentrically fulcrumed on nut 10", said furcations straddling said end'as is shown clearly in Figure 2 and designed to engage bar 7 when the lever is swung rearward, thereby forcing said bar downward into clamping engage.v ment with the valve shown at V the bifur:

cated base 1 having been spaced to straddle the valve spring and permitting the cotter pin to be removed so that the valve may be readily taken out.

When the lever is swung back into the position shown in Fig. 1, the spring 8 will operate to return the clamping bar 7 into its extreme upward position ready again for use.

I claim: a

A tool of the class described comprising a base bar, spaced rods rising therefrom, a nut adjustably mounted on one of said rods.

a cam lever fulcrumed on said nut. a 3110i able bar mounted on said rods and a coiled spring adapted to normally force said movable bar outward.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

ROBERT L. BRETH.

iVitn'esses:

E. P. PEFFER, J. R. PENIOK. 

